3271 Ul (1982 RB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3955389467 ± 5.53e-08
Semi-major axis (a)2.1017795977 AU ± 7.96e-09
Inclination (i)25.06799195° ± 4.46e-06
Long. of Asc. Node (Ω)158.80479021° ± 8.06e-06
Arg. of Perihelion (ω)159.09827000° ± 2.45e-05
Mean Anomaly (M)73.99224757° ± 3.65e-05
Mean Motion (n)0.3234681452°/day ± 1.84e-09
Perihelion dist (q)1.27044391 AU ± 1.16e-07
Aphelion dist (Q)2.93311529 AU ± 1.17e-07
Orbital Period3.04705826 yr ± 1.73e-08
Physical Parameters
H (abs. magnitude)16.55
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.237″
Uncertainty0
Orbit TypeAmor
MOID0.274902 AU
Observations Used305
Oppositions30
Arc Total1982-2026
First Observation Used1982-09-14
Last Observation Used2026-02-09
Observations (319)
Date Type RA Dec Mag Band Observatory
2024-03-01 12:20:56 C 11 00 41.520 +09 01 15.33 X F51
2024-03-01 12:38:24 C 11 00 40.756 +09 01 25.07 X F51
2024-03-05 06:49:58 C 10 56 52.559 +09 52 47.39 V G96
2024-03-05 06:57:27 C 10 56 52.213 +09 52 51.64 V G96
2024-03-05 07:04:53 C 10 56 51.882 +09 52 55.92 V G96
2024-03-05 07:12:20 C 10 56 51.565 +09 53 00.28 V G96
2024-03-30 06:35:48 C 10 33 35.115 +15 00 05.88 X F51
2024-03-30 07:10:23 C 10 33 34.009 +15 00 20.57 X F51
2024-03-30 07:27:42 C 10 33 33.445 +15 00 27.80 X F51
2024-04-10 06:17:31 C 10 26 51.392 +16 37 02.64 V G96
2024-04-10 06:24:53 C 10 26 51.248 +16 37 05.02 V G96
2024-04-10 06:32:15 C 10 26 51.090 +16 37 07.18 V G96
2024-04-10 06:39:39 C 10 26 50.946 +16 37 09.73 V G96
2024-04-10 09:09:13 C 10 26 48.026 +16 37 57.35 X F52
2024-04-10 09:29:00 C 10 26 47.632 +16 38 03.52 X F52
2024-04-10 09:48:46 C 10 26 47.217 +16 38 09.69 X F52
2024-04-10 10:08:37 C 10 26 46.816 +16 38 15.72 X F52
2025-09-10 13:59:58 C 05 54 32.271 -02 33 39.07 X F52
2025-09-10 14:16:30 C 05 54 33.217 -02 33 47.11 X F52
2025-09-10 14:33:04 C 05 54 34.185 -02 33 55.11 X F52
2025-09-10 14:49:35 C 05 54 35.122 -02 34 02.78 X F52
2025-10-05 14:19:08 C 06 21 11.763 -07 42 14.66 X F51
2025-10-05 14:28:30 C 06 21 12.014 -07 42 19.84 X F51
2025-10-05 14:37:52 C 06 21 12.292 -07 42 24.90 X F51
2025-10-05 14:47:14 C 06 21 12.547 -07 42 30.09 X F51
2025-10-12 13:43:09 C 06 25 18.192 -09 12 43.49 X F51
2025-10-12 13:54:52 C 06 25 18.406 -09 12 49.96 X F51
2025-10-12 14:18:27 C 06 25 18.828 -09 13 02.55 X F51
2025-10-19 14:32:13 C 06 27 46.843 -10 43 15.65 X F51
2025-10-19 14:46:14 C 06 27 46.956 -10 43 22.93 X F51
2025-10-19 15:00:22 C 06 27 47.070 -10 43 30.45 X F51
2025-10-20 12:11:53 C 06 27 58.284 -10 54 44.17 V G96
2025-10-20 12:17:56 C 06 27 58.324 -10 54 47.41 V G96
2025-10-20 12:24:00 C 06 27 58.360 -10 54 50.36 V G96
2025-11-25 11:30:49 C 06 11 40.968 -16 42 16.88 X F52
2025-11-25 11:47:14 C 06 11 40.230 -16 42 19.99 X F52
2025-11-25 12:03:10 C 06 11 39.510 -16 42 23.10 X F52
2025-11-25 12:19:09 C 06 11 38.787 -16 42 26.16 X F52
2025-11-30 12:23:05 C 06 06 08.975 -17 00 28.65 X F51
2025-11-30 12:38:26 C 06 06 08.220 -17 00 30.06 X F51
2025-11-30 12:53:45 C 06 06 07.457 -17 00 31.68 X F51
2025-11-30 13:09:02 C 06 06 06.706 -17 00 33.20 X F51
2025-12-06 11:42:29 C 05 59 00.369 -17 08 07.17 X F51
2025-12-06 11:58:45 C 05 58 59.503 -17 08 07.29 X F51
2025-12-06 12:15:02 C 05 58 58.628 -17 08 07.13 X F51
2025-12-06 12:31:34 C 05 58 57.761 -17 08 07.33 X F51
2025-12-16 07:34:16 C 05 46 36.678 -16 46 21.50 V G96
2025-12-16 07:42:23 C 05 46 36.228 -16 46 20.06 V G96
2025-12-16 07:50:29 C 05 46 35.800 -16 46 18.59 V G96
2025-12-16 07:58:35 C 05 46 35.353 -16 46 16.97 V G96